Christmas Holiday Open House: Each year, a theme is chosen and the United Church of Greenwich’s fellowship hall is transformed into a Christmas wonderland. Last year’s sewing/crafting theme was enjoyed by those on Greenwich’s Holiday House Tour. The Church will be having a Christmas Holiday Open House on Sunday, December 10th from 2-4 p.m. United Church is located at 37 Salem Street (Route 29) in the heart of the Village of Greenwich.